Spring suspension device for vehicles.



K. E. DEUSSBN. 7 SPRING SUSPENSION DEVIGE FOB. VEHICLES. APPLICATION nun APR. 8,1910.

969,4 3,. Patented Sept. 6,1910.

KARL EDMUND DEUSSEN, OF' BERLIN, GERMANY.

SPRING SUSPEN'SION nnvrcn FOR VEHICLES.

Application filed-Aprils, 1910. Serial no. 554,115.

To ail may concern:

Be it known that I, KARL EDMnNn DEUs- SEN, a subject of th'e'King of resident of 31 Lippehnerstrasse, man Empire, have invented a new and useful'Spring Suspension Device for Vehicles, of which the following is a specification.

-This invention relates Prussia, and Berlin, Gerspring suspension device for vehicles.

Accordingto this invention the frame of the vehicle is supported on the axles by rotatablebearings which are each connected to the frame by means of two leversgone v arranged on each side of the corresponding axle, one end of each lever being plvoted to said-frame, while the other ends are pivoted tosaid bearing at diametrically opposite points so that when the distance between said frame and said axle 1s dimlnlshed sald leversare caused to rotate in opposite di-* reotions, elastic means being employed aka simultaneously controlling to an equal degreethe rotation of each ofsaid levers. In carrying the invention into effect thelevers are preferably made in the-form of bellcranl; levers the substantially horizontal the accompanying drawing in which:

' about the 'Figure 1 is a broken sectional side elevation and Fig. 2 an end elevation of the vehicle, and Fig. 3' is a view similar to Fig. 1 showing means for varying the leverage of the spring.

Referring to Figs. .1 and 2 the frame Z ofthe vehicle is supported on the axle b of the wheels a by a'bearing a capable of rotating axle b. The bearing is connected to the frame Z by two equal arms 0 one end of each of which is pivoted at f, 'f to brackets g'secured t0 the'frame Z on opposite sides of the axle Z; while the other ends are pivoted to the bearing 0. As shown the arms a form one arm of bell crank levers, the other equal arms 5, of which are connected by a single spiral spring 2'. In order to per-' mit of the adjustment of the tension of the spring 2' this spring is connected to the arms it by means of eye bolts is screwed into the to an improved arms 71.. When the distance between the frame and the axle is diminished by an in- .creaseof load or when the wheel encounters -.an obstruction the centers of the pivots f are lowered vertically with respect to the axis of the axle, and since the outer ends of the arms 8 are constrained to move about the Specification of Letters Patent. Patented Sept. 6, 1910.

center of the axle b, they are both raised so that the bell crank levers rotate in opposite directions and increase the tension upon the spring 2'. With this arrangement it will be observed that no relative longitudinal movement between frame and axle can take place, since with both longitudinal and vertical shocks the movement of the axle relatively to thefr'ame is always normal. Further the arrangement is such that the mov ments of the frame can be reduced to a minimum bysuitably. designing the length of the lever arms.

It will be understood that the invention is not to be restricted to the use of a single 1 spring as multiple springs may be employed for instance by extending the arms 1:. on the opposite .side of the pivots f and providing tension springs connected to the free ends of such extension arms: It will further be understood that the construction of the bear ing 0 and the mode of connecting, the free ends of the arms 6 may be varied. If desired thebearingo may also be made in halves and bolted together.

Not only may the tension of the spring be adjustable as already described but also the leverage of the spring may be arranged so as to be capable of variation. As shown for instance in Fig. 3 the spring 2' is connected to an, eye 0 formed on a piece m adapted to slide in or over the lever arm A and ad justed by a screw n carried byeyes 0n the lever arm h and provided for example with a square end pfor a spanner.

1. 'In a vehicle, the combination with the frame and a wheel axle of a rotatable bear-- ing on said axle, two levers one arranged on eaoh'side of said axle, each lever having one end pivoted to said frame, while the other ends are pivoted at diametrically opposite points to'said hearing, so that, when the distance between said frame and said axle is diminished, said levers are caused to rotateiin opposite directions, and elastic means for simultaneously controlling to an equal degree the rotation of each of said levers.

2. In a'vehicle, the combination with the .frame and a wheel axle of a rotatable hearing on said axle, two levers, one arranged arranged on each side of said axle and pivframe and awheel axle of a rotatable bearing on said axle, two levers, one arranged on each side ofzsaid axle, each lever having one end pivoted to said frame, while the other ends are pivoted at diametrically opposite points to said bearing, that, when the distance between said frame and said axle is diminished, sa-id' levers are caused to rotate in opposite directions, and adjustable elastic means for simultaneously controlling to an equal degree the rotation of each of said levers.

3. In a vehicle, the combination with the on each side of said axle, each lever having one end pivoted to said frame, while the other ends arelpivoted at diametrically opposite points to said bearing, so that, when the distance between said frame and said axle is diminished, said levers are caused to rotate in opposite directions, elastic means for simultaneously controlling to an equal degree the rotation of each of said levers, and means for varying the leverage of said elastic means.

4:. In avehicle, the combination with the frame and a wheel axle of a rotatable bearing on said axle, two levers, one arranged on each side of said axle, each lever having one end pivoted to .;said frame, while the other endsare pivoted at diametrically opposite points to said bearing, so that, when the distance between said frame and said axle l is diminished, said levers are caused to rotate in opposite directions, adjustable elastic means for simultaneously controlling to an equal degree the rotation of each of said levers, and means for varying the leverage of said adjustable elastic means.

5. In a vehicle, the combination with the frame and a wheelaxle of a rotatable bearing on said axle, two bell-crank levers, one

oted to said frame, one arm of each lever being pivoted to said bearing at points equidistant from the center thereof and diametrically opposite, so that, when the distance between said frame and said axle is diminished, said levers are. caused to rotate in opposite directions and a spring device connecting the other arms of said levers and adapted to restrain the rotation'f' -of said levers. V

6. In a vehicle, the combination with the frame and a wheel axle of a rotatable bearing on said axle, two bell-crank levers, one arranged on each side of said axle and pivoted to said frame, one arm of each lever being pivoted to said hearing at points equidistant from the center thereof and diametrically opposite, so that, when the distance between said frame and said axle is diminished, said levers are caused to rotate in opposite directions, a spring device connecting the other arms of said levers and adapted to restrain the rotation of said levers, and means for adjusting the tension of said spring device.

7. In a vehicle, the combination with the frame and a wheel axle of a rotatable hearing on said axle, two bell-crank levers, one arranged on each side of said axle and pivoted to said frame, one arm of each lever being pivoted to said bearing at points equidistant from the center thereof and diaietrieally opposite, so that, when the distance between said frame and said axle is diminished, said levers are caused to rotate in opposite directions, a spring device connecting the other arms of said levers and adapted to restrain the rotation of said levers, means for adjusting the tension of said spring device and means for varying the leverage of said spring device.

I11 witness whereof I have hereunto set my hand in the presence of two witnesses.

KARL EDMUND DEUSSEN.

IVitnesses:

YOLDEMAR HAUrr, IIENRY I-Insrnn. 

